diff options
Diffstat (limited to 'cpukit/include/rtems/score/scheduleredfsmp.h')
-rw-r--r-- | cpukit/include/rtems/score/scheduleredfsmp.h | 75 |
1 files changed, 67 insertions, 8 deletions
diff --git a/cpukit/include/rtems/score/scheduleredfsmp.h b/cpukit/include/rtems/score/scheduleredfsmp.h index 6fef6fb86a..f915154241 100644 --- a/cpukit/include/rtems/score/scheduleredfsmp.h +++ b/cpukit/include/rtems/score/scheduleredfsmp.h @@ -1,3 +1,5 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + /** * @file * @@ -8,11 +10,28 @@ */ /* - * Copyright (c) 2017, 2018 embedded brains GmbH. + * Copyright (C) 2017, 2018 embedded brains GmbH & Co. KG + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _RTEMS_SCORE_SCHEDULEREDFSMP_H @@ -79,9 +98,18 @@ typedef struct { RBTree_Control Queue; /** - * @brief The scheduled thread of the corresponding processor. + * @brief If this member is not NULL, then it references the scheduled thread + * affine only to the corresponding processor, otherwise the processor is + * allocated to a thread which may execute on any of the processors owned + * by the scheduler. */ - Scheduler_EDF_SMP_Node *scheduled; + Scheduler_EDF_SMP_Node *affine_scheduled; + + /** + * @brief This member references the thread allocated to the corresponding + * processor. + */ + Scheduler_EDF_SMP_Node *allocated; } Scheduler_EDF_SMP_Ready_queue; typedef struct { @@ -110,7 +138,7 @@ typedef struct { #define SCHEDULER_EDF_SMP_ENTRY_POINTS \ { \ _Scheduler_EDF_SMP_Initialize, \ - _Scheduler_default_Schedule, \ + NULL, \ _Scheduler_EDF_SMP_Yield, \ _Scheduler_EDF_SMP_Block, \ _Scheduler_EDF_SMP_Unblock, \ @@ -120,6 +148,8 @@ typedef struct { _Scheduler_EDF_SMP_Ask_for_help, \ _Scheduler_EDF_SMP_Reconsider_help_request, \ _Scheduler_EDF_SMP_Withdraw_node, \ + _Scheduler_EDF_SMP_Make_sticky, \ + _Scheduler_EDF_SMP_Clean_sticky, \ _Scheduler_EDF_SMP_Pin, \ _Scheduler_EDF_SMP_Unpin, \ _Scheduler_EDF_SMP_Add_processor, \ @@ -128,7 +158,6 @@ typedef struct { _Scheduler_default_Node_destroy, \ _Scheduler_EDF_Release_job, \ _Scheduler_EDF_Cancel_job, \ - _Scheduler_default_Tick, \ _Scheduler_EDF_SMP_Start_idle, \ _Scheduler_EDF_SMP_Set_affinity \ } @@ -241,6 +270,36 @@ void _Scheduler_EDF_SMP_Withdraw_node( ); /** + * @brief Makes the node sticky. + * + * @param scheduler is the scheduler of the node. + * + * @param[in, out] the_thread is the thread owning the node. + * + * @param[in, out] node is the scheduler node to make sticky. + */ +void _Scheduler_EDF_SMP_Make_sticky( + const Scheduler_Control *scheduler, + Thread_Control *the_thread, + Scheduler_Node *node +); + +/** + * @brief Cleans the sticky property from the node. + * + * @param scheduler is the scheduler of the node. + * + * @param[in, out] the_thread is the thread owning the node. + * + * @param[in, out] node is the scheduler node to clean the sticky property. + */ +void _Scheduler_EDF_SMP_Clean_sticky( + const Scheduler_Control *scheduler, + Thread_Control *the_thread, + Scheduler_Node *node +); + +/** * @brief Pin thread operation. * * @param scheduler The scheduler instance of the specified processor. |